Blood Sugar Converter
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Understanding Medical Blood Glucose Units
Blood sugar values measure the concentration of glucose in your circulatory system. The international standard unit, mmol/L, represents the molecular concentration, whereas mg/dL represents weight concentration. Both provide equivalent medical information once converted.
Why Laboratory Interpretation Needs a Clinician
A blood sugar reading represents a single moment in time. Normal ranges differ depending on whether you are fasting, recently ate (postprandial), are pregnant, or have underlying medical conditions. A physician interprets these values in the context of your overall health, diet, medications, and clinical history.
When to Seek Urgent Medical Attention
- Extremely high blood sugar (hyperglycemia) above 250 mg/dL accompanied by nausea, dry mouth, or confusion.
- Low blood sugar (hypoglycemia) below 70 mg/dL with shakiness, sweating, rapid heartbeat, or confusion.
- Loss of consciousness or seizures.
Frequently Asked Questions
mg/dL (milligrams per deciliter) is the standard glucose unit used in the US, while mmol/L (millimoles per liter) is the international standard used in Canada, the UK, and Europe.
The conversion factor is 18. To convert mmol/L to mg/dL, multiply the value by 18. To convert mg/dL to mmol/L, divide the value by 18.
